The 3 things I learned when I had my foundation repaired that shocked me: city maps of utilities can be wrong

https://www.slideserve.com/morvetfmso/crawl-space-encapsulation-foundation-repair-3-must-know-tips-before-hiring

The 3 things I learned when I had my foundation repaired that shocked me: city maps of utilities can be wrong, private lines hide everywhere, and 811 marking is non-negotiable.